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प्रश्न
Complete the paragraph using proper words:
(Asymmetrical, Paramecium, Equal, imaginary, central, insects, rats, bird, three, unequal)
If body of any animal is cut through ______ axis of body, it may or may not produce two equal halves. Depending upon this property, there are different types of animal bodies. In the case of ______ body, there is no any such imaginary axis of the body through which we can get two equal halves. For example Amoeba, ______ some sponges. In radial symmetry type of body, if imaginary cut passes through central axis but any plane of body, it gives two ______ halves. For example Starfish. In case of this animal, there are five different planes passing through ______ axis of body through which we can get two equal halves. In Bilateral symmetry type of body, there is only one such imaginary axis of body through which we can get two equal halves. For example: ______ fishes, frog, birds, human, etc.
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उत्तर
If body of any animal is cut through imaginary axis of body, it may or may not produce two equal halves. Depending upon this property, there are different types of animal bodies. In the case of asymmetrical body, there is no any such imaginary axis of the body through which we can get two equal halves. For example Amoeba, Paramoecium some sponges. In radial symmetry type of body, if imaginary cut passes through central axis but any plane of body, it gives two equal halves. For example Starfish. In case of this animal, there are five different planes passing through central axis of body through which we can get two equal halves. In Bilateral symmetry type of body, there is only one such imaginary axis of body through which we can get two equal halves. For example: Insects fishes, frog, birds, human, etc.
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संबंधित प्रश्न
If you are given a specimen, what are the steps that you would follow to classify it?
How useful is the study of the nature of body cavity and coelom in the classification of animals?
What is the exact difference between grades of organization and symmetry? Explain with examples.
Complete the following chart.
| Body cavity | Germ Layer | Phylum |
| Absent | .......... | Porifera |
| Absent | Triploblastic | .......... |
| Pseudocoelom | .......... | Aschelminthes |
| Present | .......... | Arthropoda |
Write the correct co-relation:
Annelida: Earthworm :: Platyhelminthes: _______
Label the body organization of human in the following figure:
The largest division of the living world is ______.
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Which of the following have the highest number of species in nature?
Lateral line sense organs occur in ______.
Compare Schizocoelom with enterocoelom.
Observe the animal below and answer the following questions.
- Identify the animal.
- What type of symmetry does this animal exhibit?
- Is this animal Cephalized?
- How many germ layers does this animal have?
- How many openings does this animal’s digestive system have?
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______ was a greek philosopher who classified animals.
______ is a fluid-filled body cavity.
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Examine the figures of diploblastic (i) and triploblastic (ii) organization in animals given below and identify the labelled parts A to D.
Identify the phylum in which adults exhibit radial symmetry and larva exhibit bilateral symmetry.
Which group of chordates possess sucking and circular mouth without jaws?
Differentiate between a diploblastic and a triploblastic animal.
Provide appropriate technical term in the space provided.
Blood-filled cavity in arthropods ______.
